According to WLS-TV, Miranda Schaup-Werner, 41, of Allentown, Pennsylvania, collapsed and died at the Bahia Principe Hotel in La Romana on May 25. Her cause of death was listed as respiratory failure and pulmonary edema, Fox News reported.

Schaup-Werner, a psychotherapist, had taken a drink from the hotel minibar before her death, Fox News reported.

"Was this a poisoning? Why wasn't that question originally investigated by the local police?" her family asked in a statement obtained by WLS. "Is it just normally assumed that a healthy 41-year-old suddenly dies like this? Is this a pattern?"

“We are deeply saddened by the incident at one of our hotels in La Romana, Dominican Republic, and want to express our deepest condolences to their family and friends," Bahia Principe Hotels said in a statement, according to CNN.

The U.S. State Department told Fox News that U.S. Embassy officials are "actively monitoring the investigations by Dominican authorities" into all three deaths.